Issued September 12. 1908. 



U. S. DEPARTMENT OF AGRICULTURE, 



BUREAU OF CHEMISTRY BULLETIN No. 117. 



H. W. WILEY, Chief of Bureau. 



COMMERCIAL SICILIAN SUMAC. 



By 



F. P. VEITCH, 



CHIEF OF THE LEATHER AND PAPER LABORATORY. 



INCLUDING NOTES ON THE MICROSCOPICAL EXAMINATION OF 

 SICILIAN SUMAC AND ITS ADULTERANTS, 



By 

 B. J. HOWARD, 



CHIEF OF THE MICROCHEMICAL LABORATORY. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 



1908. 



